An A list machine could be the machine everyone wants, but no body can get. 

An A list machine could be the one ya mate has and the mongrel wont sell it. 
 
Cactus Canyon is an A list dud. too expensive and boring. perhaps 

really, An A list machine is just the machine you think is the best this week which you would pay top dollars for because u just want it.

does anyone really know what an A list machine is ?     

any machine starting with the letter "A".